BattleGuess is a free online history trivia game where players identify famous historical battles from images. It covers battles from ancient Egypt and Mesopotamia through to the World Wars, with 5 different game modes including classic, year, campaign, daily challenge, and multiplayer challenges.

How do you play BattleGuess?

You are shown an image of a historical battle and must guess which battle it depicts. You can use hints (at a point cost) to help identify the battle. Choose from 5 game modes: Classic (identify the battle from an image), Year (guess the year), Campaign (progressive missions), Daily (new challenge every day), and Challenge (compete with friends).

Is BattleGuess free to play?

Yes, BattleGuess is completely free to play. No account or download is required — just visit battleguess.app and start playing in your browser on any device.

What historical periods does BattleGuess cover?

BattleGuess covers battles from 8 historical eras: Ancient Egypt and Mesopotamia, Ancient Greece and Rome, Medieval Europe, Ottoman and Islamic Empires, East Asia, Colonial and Napoleonic Era, American Wars, and World Wars. Each era has multiple battles at easy, medium, and hard difficulty levels.

What game modes are available in BattleGuess?

BattleGuess offers 5 game modes: Classic (identify the battle from an image), Year (guess when the battle took place), Campaign (complete themed missions), Daily Challenge (new battle every day), and Challenge (create shareable challenges for friends).

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🏛️ Ancient Egypt & Mesopotamiahard

Battle of Opis

539 BCE · Opis, Tigris River (modern Iraq)

Quick Facts

Year: 539 BCE
Location: Opis, Tigris River (modern Iraq)
Era: 🏛️ Ancient Egypt & Mesopotamia
Difficulty: hard

Historical artwork depicting the Battle of Battle of Opis

Cyrus the Great confronted the Babylonian army under Nabonidus's son Belshazzar at the strategic city of Opis on the Tigris River. The Persians won a decisive victory, and the defeat shattered Babylonian morale. The nearby city of Sippar surrendered without a fight, and Babylon itself fell shortly afterward with minimal resistance. The battle effectively ended the Neo-Babylonian Empire and brought all of Mesopotamia under Persian control, creating the largest empire the world had yet seen.

💡 ¿Sabías que...?

The Battle of Opis opened the road to Babylon, which fell so quickly afterward that according to the ancient sources, some parts of the city did not even know it had been captured.

Related Battles

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Battle of Kadesh

1274 BCE · Orontes River, Syria

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Battle of Megiddo

1457 BCE · Canaan (modern Israel)

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Battle of Pelusium

525 BCE · Nile Delta, Egypt

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Battle of the Delta

1175 BCE · Nile Delta, Egypt

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